5lbs is 5lbs, easy on and easy off, I promise, ok, lets get it in to perspective, you are only human hun x
When you get to goal you wont put it all back on again, I didnt, and you wont.
When I ssed, I did it for 5 months, at the end of the 4th month I went to Tunisia for 4 days, I had all intentions of doing ss or AAM there.
I got on the plane, and they stuck a full english i front of me, guess what, I wolfed the lot

and then i didnt resurface for 5 days!!!
I put on 9lbs in the space of 5 days. I then SS'ed on my return, and it was back off in 5 days, another month on SS I was at goal, then I did it properly, worled through the stages (well till xmas 2006) and then roughly maintained for 1 year, DD got ill and was hospitalised last summer and I gained weight there through living at the hospital and then christmas this year, hey, its only 14lbs, its not the 60lbs I had to lose 2 years ago!
You can do it, you are not a failure, you are a beautiful mum with beautiful kids. Bet hey, guess what, you are human too, and a brill human at that x